Tube-coupling.



No. 740,004. PATBNTED SEPT, 29, 1903.

\ R. A. GILLESPIE.

TUBE COUPLING. APPLwATIoN FILED Novo. 1901. RENE'WBD'PEKB. 14. 1903.

No MODEL. 2 SHEETS-SHEET 1,

Iride/z zoff mmm PATENTBD SEPT. 29, 1903.

R. A'. GILLESBIE. TUBE COUP-LING. Y APPLIOATION FILED Nov. zo, 1901. BENEW'E'D PEB. 14, 1903.

2 SHEETS-SHEBT 2.

No MODEL.

T/V/zesses.

A@ QQ UNITED STATT-:s

atented September 29, 1905i.

FATF-Nr QFFIQE ROBERT A. rnLLEsPnr, or ALLEGHENY, PENNSYLVANIA, AssieNoR To THE GILLESPIE MANUFACTURING COMPANY, or PITTSBURG, PENN- sYLvANIA.

TUBE-COUPLING.

SPECIFIGA'ION forming part of Letters'Pate'nt No. 749,004, dated September 29, 1903. Appneenen inea November 2o, V1901. Renewed retmery 14, 190s.` serieu No. 143.434. (Ne meren To afZZ whom it maj/.concerns Be it known that I, ROBERT A. GIALLESPIE, a citizen of the United States, residing at Allegheny, in the county of Allegheny and State.

longitudinal displacement there of in the coupling-sleeve.

The invention consists in the novel features of vconstruction and in the combination and arrangement of parts hereinafter fully described and claimed, and illustrated by the accompanying drawings, wherein;

Figure 1 isa view,` partly insection and partly in elevation, of a coupling embodying my invention. Fig. 2Vis an end view of the same, partly in section. Fig. 3 is a detail view of the glandsecuring slip or wedge. Figs.,

4 and 5 are similar views of the pipe-impinging dog. Figs. 6 to 15, inclusive, are sectional views of couplings of modified formi Referringto the drawings, 2 designates the smooth unthreaded'.pipeslblrtubeg and@L the coupling-sleeve contracted centrally at 4 to receive the pipe extremitiesnand 'at' theends of suiiicient 'diameter' Vlowadmit the pipe-embracing vglands 5..)gThe inner edge of each gland is tapered at 5 to "enter a groove of similar form in the outer edgeof rubberpackingring V6', while the inner edge of the latter is cut obliquely to engagethe corresponding surface 4 of the sleeve contraction, whereby when the rubber is compressed bythe gland the space between the pipe and sleeve is sealed in a most effective manner. .v .515., Y

In the preferred embodiment of mylinvention the gland is formed with two or morel slots orY openings 7 to receive the pipe-gripping dogs S, provided, preferably, with teeth S on their inneredges and on their outer edges with notches or serrations 9. These dogs are caused to forcibly impinge the pipe by the gland-securing means presently to be described, and the inner extremity of each dog and the inner .end of slot 7 are correspondingly inclined or beveled at 8 and 7', respectively, whereby outward or backward pressure of the gland on the dogs `tends to force the latter inward and more tightly grip thepipe. 1 Each dog may be 'provided with side projections 10, extending into enlargements 7 of slots 7, whereby the dogs are retained in the gland, with the latter secured temporarily in the sleeve, as when shipping or storing the couplings.

- For applying the coupling the glands may be secured in a variety of ways, either alone orv in connection with the pipe -impinging dogs. In the construction shown in Figs. 1, 2, and 6 the inner face of each extremity of sleeve 3 is formed with the longitudinallytapering depressions. 11, which receive the correspondingly-formed slips or dogs l2, each having a tooth 12' and a projecting extremity 13, extending beyond the sleeve 3 to form a handhold. In Figs. 1 and 2 slip-teeth 12 engage the notched outer edges 9.of dogs 8, so that in anyoutward displacement -of the gland therefisla ,correspondingmovementk of the slips, ywhich-anthesametime are moved towardthe pipe, and thereby-force dogs 8 more tightly int engagement therewith. This, in addition to the direct inwardly-forcing action of the gland on the dog, above described, provides a thoroughly-automatic lock, the effect- Fig. 6, by the toothed slips l2.

In Figs. 7 and .8 sleeve 3 is formed with through slots or openings 15, beveledat their outer ends at 15' to receive the beveled dogs 16, .toothed at 16 to engage either pipe-gripping dog 8 or the gland-notches 14. In this arrangement an increasing outward pressure or. strain augments the effectiveness of the IOO coupling. Openings 15 are of such form as to prevent outward passage of dogs 16, so that the coupling parts may be assembled for shipping or storage without danger of loss.

In Figs. 9 and 10 sleeve 3 is slotted at 17 to receive the pivoted pawls 18, which engag either dogs S or gland-notches 14.

In Figs. 1l, 12, and 13 the sleeve is formed with transverse openings 19, coincident with dogs S or the raised notched surfaces 2O of gland 5, and operating in said openings to engage either the dogs or gland-notches are the Wedge shaped keys 2l, having beveled notch-engaging edges and apertured at their smaller ends to receive Cotter-pins 22, which guard against accidental dislodgment of the keys. The latter being wedge shaped any desired amount of pressure may be exerted on the pipe-gripping dogs or glands.

In Fig. 14 the gland-notches 14 are shown engaged by the outwardly-movable springheld bolts or latches 23, arranged in suitable openings 24 in sleeve 3.

For forcing the glands into the sleeves when applying the several forms of couplings thus far described sleeve 3 is formed with openings 2i to receive the headed clamp-bolts 25, which are readily slipped thereinto, with the bolts projecting outwardly between glandlugs 2G, where they receive the nuts 25', and by this means any desired amount of pressure may be exerted on the glands and packing 6, and when sufficiently tight the locking means may be applied, all forms of the latter being readily manipulated, after which bolts 25 are removed. Said bolts may be applied at any time for the purpose of tightening or removing the coupling. While I prefer this form of clamp, it' will be understood that clamps of various forms may be employed for forcing the glands int-o the sleeves.

In the construction of Fig. 15 a U-shaped gland 27 is employed which embraces sleeve 3 and has its outer branch or surface 28 formed with openings 29, provided with knifeedge seats 30 for dogs 31, the latter being confined on said seats and having limited movement in openings 29 for engaging notches 32 in the outer surface of sleeve From the several examples here shown it will be seen that the principles underlying my invention may be applied in a great variety of ways, any one of which provides ample range of adjustment and serves to secure the coupling in a most effective Way.

With ground pipe-lines for various purposes, Whether Water, oil, gas, or other fluids or liquids, the corrosion is such that in avery short time threaded joints become so fixed that it is impossible t0 move them for adjustment or repair, and this, in addition to the expense of cutting threads, makes threaded are simple, effective, readily accessible, and not subject to serious injury from rust or corrosion, being Within or inclosed by the coupling elements.

I-Iaving thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a coupling, the combination of a sleeve having side depressions or openings, packing, packing-securing means, and Wedge-shaped securing devices for the latter in the sleeve depressions or openings.

2. In a coupling,the combination of a sleeve, packing, packing-compressing means, tubeimpinging devices adapted to secure the said compressing means, and means for uniting the sleeve and the tube-impinging devices.

In a coupling, the combination of a sleeve, a gland, tube-impinging devices adapted to secure the gland, and means for uniting the sleeve and the tube-impinging devices.

4. In a coupling, the combination of a sleeve member, a pipe-securing member overlapping and adjustable longitudinally of the sleeve member, series of securing-points extending longitudinally of one of the members, and a securing device carried by the other member for adjustably engaging said securing-points.

5. In a coupling, the combination of a sleeve formed with side depressions or openings, a gland, and gland -seeuring devices in the sleeve depressions oropenings.

b'. In a coupling, the combination of a sleeve formed with side depressions or openings, a gland having longitudinally-extending series of securing-points coincident with said depressions or openings, and securing devices confined in the latter for engaging the securing-points.

7. In a coupling, the combination of a sleeve formed with side depressions or openings, a gland, and wedge-shaped gland-securing dcvices in said sleeve depressions or openings.

8. In a coupling,the combination of a sleeve, a gland formed with side openings, pipe-impinging devices in said openings, and glandsecuring means.

9. In a coupling,the combination of a sleeve, a gland "formed with side openings having beveled faces, pipe-impinging devices in the openings formed with beveled faces which are engaged by the corresponding faces of the gland-openings, and gland-securing means.

10. In a coupling, the combination of a sleeve, a gland having side openings, in- Wardly -movable pipe impinging devices in the gland-openin g, and gland-securing means operatively engaging said devices for forcing them inward.

11. In a coupling, the combination of a sleeve, a gland formed with side openings, pipe-impinging dogs in said openings having serrated outer faces, and gland-securing devices adapted to adjustably engage the scrrated dogs.

12. In a coupling, the combination of a sleeve formed with tapered or Wedge-shaped IIO openings or depressions, a gland having side openings coincident with the sleeve-openings, pipe-impinging dogs in the gland-openings, and gland-securing devices adjustable longitudinally in the tapered sleeve-openings and adaptedl to engage and force inward the said dogs.

13. In a coupling, the combination of a sleeve formed with tapered or wedge-shaped depressions or openings, a gland having side openings, pipe-impinging dogs in the glandopenings, said openings and dogs having cooperatingbeveled faces acting to force the dogs inward against the pipe when the gland moves outward, and longitudinally-tapered or wedge-shaped gland-securing devices in the sleeve-openings and operatively engaging Athe pipe-impinging dogs.

14. In a coupling, the combination of a Y sleeve, aV gland formed with side openings, pipe-impinging dogs having limited inward movement in said gland-openings, and glandysecuring means.

15. In a coupling, the combination of a v J. VM. NESBIT, MARGARET HUGHES. 

